[Kaleos]

вот. если внимательно посмотреть то в коде нет вашей функции open_win1, open_win2, open_win3 ...
поэтому ошибка..

а что хранится в файле JavaWindows.js ??

Как же нет, а это onclick="open_win1, onclick="open_win2.....

Файл JavaWindows.js это тот же JavaScript.js который я писал выше.
Я его переименовал.

JavaWindows.js:

function open_win1(){
var myWin = window.open("http://localhost/Main/names/7_6.html","Names","toolbar=no, location=no, directories=no, status=no, 
menubar=no, scrollbars=yes, resizable=yes, width=1300, height=650");}
function open_win2(){var myWin = window.open("http://localhost/Main/names/5_8.html",
"Names","toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=yes, width=1300, height=650");}
function open_win3(){var myWin = window.open("http://localhost/Main/names/1598_1605.html","Names","toolbar=no, location=no, directories=no, status=no, menubar=no, 
scrollbars=yes, resizable=yes, width=1300, height=650");}
function open_win4(){var myWin = window.open("http://localhost/Main/names/1601_1609.html","Score 
chart","toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=yes, width=1300, height=650");}
function open_win5(){var myWin 
= window.open("http://localhost/Main/names/1604_1607.html","Names","toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, 
resizable=yes, width=1300, height=650");}
function open_win6(){var myWin = window.open("http://localhost/Main/names/1600_1601.html","Names","toolbar=no, 
location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=yes, width=1300, height=650");}
function open_win7(){var myWin = window.open(
"http://localhost/Main/names/783_778.html","Names","toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=yes, 
width=1300, height=650");}
function open_win8(){var myWin = window.open("http://localhost/Main/names/776_780.html","Names","toolbar=no, location=no, 
directories=no, status=no, menubar=no, scrollbars=yes, resizable=yes, width=1300, height=650");}